BMW E60 E63 E64 530i 630i N52 258HP ECU Kit DME 7546990 + CAS2 + Key Automatic

BMW E60 E63 E64 530i 630i N52 258HP ECU Kit DME 7546990 + CAS2 + Key Automatic is a complete engine control and immobilizer kit designed for BMW models with the N52 engine producing 258 HP and an automatic transmission. The kit includes the DME module, the CAS2 module, and a matched key, facilitating the restoration of proper powertrain electronics operation after a failure or engine replacement. By maintaining the consistency of the control system components, this set provides a coherent service solution for discerning users and workshops.

Specifications and technical data

• SKU: 7546990-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7546990
• Substitutable numbers: 12147577970 12147546990, 5WK90071 61356963828, 7577970 7546990 6963828
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Application of the ECU DME + CAS2 + Key Kit

The presented kit is intended for BMW 5 Series E60 and 6 Series E63/E64 cars with the 258 HP N52 engine, equipped with an automatic transmission. The combination of the DME engine control unit with the CAS2 module and key ensures compatibility of the security system, which is crucial when replacing electronics in vehicles with an advanced immobilizer system.

A kit configured in this way is particularly useful in situations where the original control unit has been damaged, there are problems with key authorization, or the entire powertrain system needs to be transferred between vehicles with similar configurations.

Benefits of Using an Original BMW Kit

Original BMW components from the electronic control modules and units group ensure high compatibility with the vehicle's factory installation. Using a complete DME + CAS2 + Key kit minimizes the need for deep software intervention and allows for a more predictable adaptation process in the vehicle.

• consistency of security system components (DME, CAS2, key),
• preservation of the factory immobilizer's operating logic,
• easier diagnostics and configuration compared to replacing a single module,
• a solution tailored to the specifics of the N52 engine and automatic transmission.

For workshops specializing in the BMW brand, such a kit is a practical basis for further vehicle configuration, especially for more complex powertrain electronics repairs.

Technical Characteristics and Vehicle Integration

The kit is designed to work with the 258 HP N52 unit and an automatic transmission, which is important for control maps, gear shifting strategies, and vehicle network communication. Proper matching of the transmission type minimizes the risk of communication errors between the engine control unit and the modules responsible for transmission operation.

In practice, installing such a kit requires:

• verification of body (E60, E63, E64) and 258 HP N52 engine version compatibility,
• checking the vehicle's electrical system configuration and equipment,
• performing adaptation and diagnostic procedures using appropriate service tools.

A correctly selected ECU kit ensures stable engine operation, proper engine starting, and cooperation with other comfort and safety modules.

Part Condition and Practical Aspects

The offered kit is a used part, which in practice means a favorable compromise between repair cost and maintaining original BMW quality. For many users and service centers, this is a rational solution in case of electronic failures, especially for older generations of E60/E63/E64 models.

Before installation, standard diagnostic verification and consultation with a workshop experienced in working with DME and CAS2 modules are recommended. Properly performed installation and configuration allow for the restoration of full powertrain functionality without the need for costly replacement of new components.

Part Selection by OEM and Knowledge Expansion

When selecting BMW control units, it is crucial to use OEM and interchangeable part numbers, as well as verify compatibility by VIN. More on how to consciously use original used BMW components can be found in the article: BMW – Sporty Performance and Precision with Used Original Parts. This is a practical addition to knowledge for those who want to extend the life of their car without sacrificing its factory driving characteristics.